I've just noticed something really strange, after have installed the zimlet and played with it a bit, I've tried to access to my alfresco share in a Site (called "test") that was already present before and I've noticed this message in red under the "Recently Modified Documents" in the Site Dashboard:

I've also noticed that when I receive an email with either a pdf or a rtf file as attachment Zimbra doesn't display the option "Save to alfresco". No problems, for example, with odt or doc.
Is this a bug or a missing feature?

It's working (almost)

Ok, I got it to work.
I uninstalled it and started again and now I can connect to alfresco and upload a file in some cases.
I've found out when it does not work. We have many folders that have Spanish names. If the space has an character like &#225;&#233;&#237;&#243;&#250;&#241; and so on the upload fails. Am I doing something wrong or this is really a limitation on the zimlet?

Also I do not seem to be able to attach anything from alfresco. When I open the attachment window I get no alfresco tab.
Any ideas?

thanks for your quick response. My iptables are clean -- so it's quite unlikely that it is the firewall.

Zimbra and Alf are running on the same server. Do you know how the connection is made? Is it just internal (so that "localhost:8080" should work)? Or is the connection made through the web-browser of the client (so that I need to enter "fqdn:8080")?

Truth being told I do not know. I have just tried an external connection. In my case our zimbra server is in a DMZ and our alfresco server is behind a firewall. That is why I had to open that route. In my case I used the IP of the machine (ej. 192.168.X.X:8080)
Any one has any ideas where I may look to solve the problem with characters like &#233;&#225; and so on?